Super comfortable and stays in place perfectly-- no slippage. (One reviewer mentioned they come out if you lift your arms up, but I think she must be wearing the wrong band size!) I was worried it might bother my sensitive skin, but it does not. I use it to help me comfortably fill out the top of my bra cups if they're the right underwire size but not the same shape as my deflated mom boobs. I gave it 4 stars only because it does not have a thin tapered edge, so in an unlined bra there is a visible line where it stops which would show under very tight-fitting tops. But it's less noticeable with a lined bra. Dorothy

• Body Type: Average Height (5'4"-5'8")
• Age: 30's
• Posted: May, 2013

I love this little gizmo. I had breast surgery that left me with one breast noticeably smaller than the other. These little inserts allow me to alter the size of only one breast. They are very realistic feeling, and stay in place nicely. Just the thing for me. Daisy from Maryville, TN

• Body Type: Petite (5'3" and under)
• Age: 70's
• Posted: February, 2013

Being uneven in cup size has made buying bras a nightmare my entire life and really limited my bra choices. I'd tried other inserts but they always felt heavy or shifted around. This one is just as good as everyone else says. I completely forget I'm wearing it, except for the fact that the bras fit and look good! I'm really excited to be able to shop for bras and not worry about an even fit anymore. It's ideal in bras with pockets - I'd love if HerRoom would start carrying more of those!! Cerise422 from MI/USA

• Body Type: Petite (5'3" and under)
• Age: 30's
• Posted: November, 2012

I got these for a couple unlined bras I needed a little "help" filling out. Tried several different ways of seating them in the bras (at the underwire beneath my breasts, along the outer edge at the underwire), but I could never get them to sit just right, and it was always really obvious that there was something else in the bra along with me--a not-so-subtle line between my breast tissue and the product. They got the little wrinkles out of my bra cup, but added a lump/line that screamed "I'm padding." I can't decide if it was more padding than I really needed, or if the pad wasn't quite wide enough or tapered enough for my needs. I really hoped I could get them to work for me, and I was so excited to have them, but I had to send them back. Jay from Phoenix, AZ

• Body Type: Average Height (5'4"-5'8")
• Age: 30's
• Posted: October, 2012

I love the comfort fit & seems to stay in place without adhesive. Would like to have the option of a bit longer size to go toward the side area. I am pleased to have something that evens me out a bit from a previous lumpectomy. Nancy from McMinnville OR USA

• Body Type: Petite (5'3" and under)
• Age: 60's
• Posted: July, 2012

Was looking to fill out bra after lumpectomy. My incision is on upper part of breast, so this particular insert didn't work. Would not stay in place. Would probably work better in bottom of cup. Returned. Quality of product was good.

Pure Style Girlfriends Response: Bump-a-Cup is a silicone insert that does not have any adhesive. Since there is no adhesive, gravity may make it slip if it is not supported. Try stitching Pure Style Girlfriends Cover-a-Cup Cover for any Bra Insert 50152 into your bra. Cover-a-Cup are soft, sweat absorbent cotton covers that act like little pillow cases for Pure Style Girlfriends silicone inserts. A few easy stitches of Cover-a-Cup into your favorite bra will provide the structure to keep Bump-a-Cup in place. Cover-a-Cup will hold Bump-a-Cup in place and Bump-a-Cup will enhance the fullness of your breast shape. Linda from Texas

• Body Type: Average Height (5'4"-5'8")
• Age: 60's
• Posted: May, 2012

These are very comfortable. Just the right size. Fits in all my push up bras. Love these things. Who needs surgery....not me. laurie from zville

• Body Type: Petite (5'3" and under)
• Age: 50's
• Posted: February, 2012

Great item, will probably buy the Jump-a-Cup too. Just gives you a little more oomph or helps to position your cleavage. I could not feel them in my bra either, they just comfortably mold to your shape. K.

• Body Type: Average Height (5'4"-5'8")
• Age: 30's
• Posted: March, 2011

Doesn't "bump" to any discernible degree and tends to slip out bottom of bra if you lift your arms up.

Girlfriends Response:Bump-a-Cup is very subtle and is designed to slightly enhance. Women that are an A Cup will notice the biggest impact. If you are a B or a C Cup and looking for enhancement, then we recommend Jump-a-Cup or Bump & Jump-a-Cup. This size proportion will give you more of the “Wow” effect you are looking for. Remember to tighten your bra straps for extra lift and support. This will help ensure that your insert does not slip out. Jennifer

• Body Type: Average Height (5'4"-5'8")
• Age: 40's
• Posted: March, 2011

I'm returning these, they add bulk but not lift and I'm not pleased with the look. Also feel heavy. I also go the Fashion Forms Water Wear Push Up Enhancement Pads and those are fantastic! Angie from Portland, OR

• Body Type: Average Height (5'4"-5'8")
• Age: 20's
• Posted: September, 2010

The quality is great, I personally just don't like them. It feels strange having something stuck in my bra. Amy from Laguna Niguel/CA/USA

• Body Type: Average Height (5'4"-5'8")
• Age: 20's
• Posted: April, 2010

Just the boost I needed. These were perfect for a little extra boost in my lower cut tops! Leslie from Oakland, CA

• Body Type: Average Height (5'4"-5'8")
• Age: 30's
• Posted: April, 2010